The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2018
Filed:
Jun. 12, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroki Sasame, Ichikawa, JP;
Shinsuke Kobayashi, Yokohama, JP;
Takaaki Akamatsu, Yokohama, JP;
Kohei Okayasu, Mishima, JP;
Kenji Shindo, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A relationship 150≤Rs (Ω)/Rm (Ω)≤4000 is established in an environment of a temperature of 15° C. and a humidity of 10% in a case where a surface resistance of a transfer roller is Rs (Ω) when a current is fed between a pair of electrodes facing each other in an axial direction of the transfer roller and arranged on a surface of the transfer roller with an interval of 5 mm therebetween, the electrodes having a width of 20 mm in a circumferential direction of the transfer roller in a state of being arranged on the transfer roller, and in a case where a combined resistance of a first layer and a second layer is Rm (Ω) when the current is fed from a core portion to an outer peripheral surface of the second layer.